barditzky



(No Model.) 2 Sheets-Sheet 1. H. BARDITZKY.

MINING MAGHINE.

Patented July 10, 1883.

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r 2 Sheets-Shet 2. H H. BARDITZKY.

(No Model.)

MINING MACHINE.

N. PETER; Mniithqruphor, \VnW-n. D. c.

.To all whom it may concern.-

UNITED STATES PATENT O FICE.

HERMANN BARDITZKY, OF ST. LOUIS, MISSOURI, ASSIGNOR TO ANDREW BRANDENBURGE R AED WILLIAM TIRRE, OF

OF TWO-THIRDS SAME PLACE.

MINING-MACHINE.

SPECIFICATION formingpart of Letters Patent No; 280,781, dated July 10,1883.

Application filed February 13, 1883. (No model.)

Be it known that I, HERMANN BARDITZKY, a subject of the King of Prussia,and a resident of St. Louis and State of Missouri, have;

invented a new and useful Improved Mining- Machine, of which thefollowing is a specification.

Myinvention relates to improvements in mining-machines designed moreespecially to facilitate the laborious operation of undercutting,boring, drilling, and detaching coal, clay, rocks, &c. hence isserviceable for working in coal and clay mines and banks, quarries, andfor tunneling purposes. I accomplish the said objects by the mechanismillustrated in the accompanying drawings, in which Sheet 1: Figure l isa perspective viewfof the complete machine as readyfor application anduse. Sheet II: Fig. 2 is a side elevation. Fig. 3 is a top plan, thedotted lines representing the respective positions any of theboringtools, also pick and extractor-tool, can be made to assume whennot to be used. Fig. 4 is a transverse section on line 4 4"of Fig. 3.Fig. 5 is a detail view showing the coupling-connection between one endof a shaft and its rack-bar.

Fig. 6 is a detail view showing a shaft with its feather passing througha collar fitted by its flanges to revolve in the .bearing of the uprightframe. Fig. 7 is a detail of the feed mechanism that drives the pinionson all the rack-bars, said figure showing adjustable parts to suit thepawl with relation to the driving ratchet wheel. Fig. 8 is a detail ofthe pick with its pivoted jaw or extractor.

Similar letters of reference refer to the same parts throughout theseveral views.

A represents the bed-plate of the machine, upon which the operatingparts are mounted.

As shown in Fig. 1, the entire machine can be made portable by providingsame with trucks or wheels in the manner usual.

The respective standards are composed of two parts-the lower section, B,and the top section, B. (See Figs. 1, 2, 3, 4, 6.)

1) represents the bolt-fastening through the sleeve-corners of the twosections 1313, to unite the standard parts top of each other, as indicated.

O are the shafts, of which there can be any number, all similarlyarranged and operating alike. Each shaft is capable of being revolved,and at the same time has a forward push motion, and the manner and meansto fit said shafts to pass through therespective opposite collars d d inthe standards are as follows: Each shaft has extending its entire lengtha feather, c. This fits in a corresponding-shaped groove, 0, made in thetwo collars, as shown in Figs. 1, 4, 6. Further, each collar is placedin the bearing between the two sectional parts of a standard, so thatthe collars can freely revolve at the same time. The opposite sideflanges at shown in Figs. 1, 4. Otherwise the pinions are kept in placealongside the standards by an additional bracket-support, 0, so as notto interfere with the proper rotation of the pinion. (See Figs. 1, 3.)The joint, therefore, between the pinion and its shaft is such as alsoto permit the shaft to be revolved and be capable of a forward motionwhen the shaft is to be fed forward or be withdrawn, as the case mayrequire.

E is the main drivinggear, fitted to mesh with both pinions toimpartrotation to each. (See Figs. 1, 2, 3, 4.) This driving gear-wheel ismounted to turn with the power-shaft F, that has its ends journaled neartop of the uprights or standards.

. F is the bell-pulley on the main shaft, from which, by beltingconnection to power source, the operation of all the parts takes place.

, G represents the boring-tool or'cutters. (See Figs. 1, 2, 3.)

The several shafts 0, together with their boring-tools, can therefore befreely revolved to bore, drill, or hole the coal, clay,'or material;but, further, it is my object at the same time, in boring or holing thematerial, to impart to each shaft, or all combined, as desired, aforward thrust or push motion, and this I accomplish by the mechanism asfollows:

H H are the respective rack-bars, which I couple to each shaft. Thecoupling I, to unite the end of the shaft to its rack-bar, is such as tofreely permit not only the shaft to revolve, but also permits both shaftand its rack-bar to have the horizontal forward feed motion just statedto thrust the boring-tool forward while in the act of boring or holingthe material. This coupling I is in the nature of a sleeve made in twolike halves, with flanges i (See Figs. 1, 2, 3, 5.) At one end thecoupling presents an opening fitted for the insertion ofthe end of therack-bar, and a pin, 6., is passed through all the parts to secure therack-bar to the coupling. (See Figs. 1, 5.)

The end of the shaft is likewise placed between the coupling-halves,these being fitted with an'an'nular groove or recess, i, to re ceive thehead of the shaft, which is thus coupled, so that it can revolve, yetfollow up the movements imparted to the rack-bar. (See Fig. 5.) Finally,the two coupling-halves are placed top of each other, and their sleevesare firmly bolted together, as indicated. All the rack-bars are thuscoupled to their shafts; hence when the former are withdrawn or movedbackward the same motion can be imparted to the shaft. Thiscoupling-connection permits the operator to disengage any or all therack-bars from their shafts, to dispense entirely with any particularrack-bar, or to operate a shaft and borer-tool alone.

The mechanism to operate the rack-bars is as follows: The power-shaft atone end carries a bevel-gear, j, meshing with the similar bevel-gear j,mounted on a shaft, j", which is transversely arranged and turning inproper bearings top of a side standard, J, that is bolted upright to thebed-plate of the machine. (See Figs. 1, 2.) The opposite end of thetransverse shaftj carries adisk-wheel,

j, to which is eceentrically pivoted one end of a pitman, J. The otherend of pitman, by means of a set-screw, j, passing through a slot, 3"",is adjustably secured to an arm, J that has its lower end pivoted to thebedplate or journaled to the rear shaft, K, as indicated. The rearshaft, K, is also arranged transversely, and turns in properjournalboxes of the side frames or standards, k 7;. (See Fig. 3.) Tothis shaft K is rigidly secured the respective pinions It It to meshwith the respective rack-bars. (See Figs. 1, 2, 3.) Also, on the shaft Kis the driving ratchetwheel K, in engagement with which is the pawl thatis shown pivoted to the vibratory arm J (See Figs. 1, 2, 3, 7.) Thus theintermittent circular motion of the driving ratchet-wheel K, from thevibratory motion of the arm J", carrying the pawl k, revolves the rearshaft, K, with its pinions, and imparts a horizontal feed or push motionto each rack-bar.

It will be noted that the feed motion on the part of any or all theracks does not interfere with the revolving of the tools, and that aseach tool holes or bores into the material this forward feed motion onthe part of the rackbars is communicated to its proper shaft and tool,and decisively assists the lat ter to bore its way into the material.

In connection with the revolving rear shaft I have provided anautomaticacting pry or pick and extractor to enter the coal, clay, ormaterial alongside of the holings, for purposes of loosening the wallsbetween the places where the holes are bored, breaking the material,also extracting the broken chunks or loosened portions.

L represents the pick, and pivoted to one side thereof is a jaw orextracter, L. (Sec Figs. 1, 3, 8.) As shown, the pick is the sharpenedpoint of a long rod or bar, L which passes through guide-boxes securedto the bed-plate. The rear end of the bar L can be made a rackbar orcoupled to one, (see L in Figs. 1, 3.) This rack-bar L is operated bythe farther pinion Z on the extreme end of the rear shaft, K. (See Figs.1., 3.) The rack-bar L, being thus capable of a forward thrust motion,forces the pick, with its extractor, to enter the material. Morespecifically stated, in thrusting the pick forward, its hinged jaw orextractor L is forced to lie alongside of the rod in the position shownin Figs. 1, 3. The pick and extractor in this condition penetrate thematerial; but on with drawing the pick its jaw or extractor L is movedoutward, assuming the position shown in Fig. 8, taking hold of thematerial and extracting the broken portion thereof in the very act ofwithdrawing the complete instrument. At any stage of the work the pickand extractor can be used, and when not to be used is si in plywithdrawn to the rear or removed from themachine. Similarly, any shaftcarrying a boring-tool can be withdrawn or made to assume the positionshown in dotted lines in Fig.

3 by uncoupling the joint with its rack-bar and removing same out ofgear.

The complete operation of the machine can be stated as follows: Themachine by its trucks can be brought to face the coal, clay, or materialto be mined, as desired. When in proper position, the power sourceoperates all the shafts carrying boring-tools simultaneously, or such ofthese parts as it may be desired to operate. At same time the feedmechanism thrusts the tools forward into the work or material. It isthis forward thrust, push, or impact motion of each shaft, actingsimultaneously with their revolving boring-tools, that bores andotherwise forms the hole or holings in the material, forming anddividing walls in same, preparatory to loosening and removing the holedportions. The loose gritty sand or pulverized portion of the materialcan. pass through the hollow of the boring-tool, falling out immediatelybehind same; or the said pulverized rock, coal, 850., removed by thecutting-edges can bepassed out at the rear end of the machine by simplymaking the shafts (that carry the boring-tools) hollow their entirelength and closing the tool at its junction with the end of its shaft.The same forward thrust motion being imparted to the pick forces it toenter the material and loosen and break same, and on the returnstrokethe said broken material is extracted by the eX- K, mounted on shaft K,having pinion k, mesh ing with rack-bar H, coupled to same shaftcarrying the tool, as described, by means whereof the said shaft orshaft and tool and rack-bar can have a forward or thrust motion, as andfor the purposes set forth.

2. In a mining-machine, the combination of partsviz., the sectionalstandards B B, the

collard, having groove 0 and flanges (2 the feed-shaft 0, having featherc, the'boring-tool G, the pinion E, having groove 6, the maindriving-gear E", power-shaftF, bevel-gearj, the bevel-gear j on aseparately-supported shaft, j having eccentric connection to pitman Joperating an arm, J carrying pawl R the driving ratchet-wheel Kon shaftK, having the pinion k, meshing with rack-bar II, coupled to same shaftcarrying the boring tool, by means whereof the said shaft or its toolcan be revolved and at same time feed forward, in the manner and for thepurposes set forth.

3. In a mining-machine, in combination with a revolving shaft carrying apinion, Z, the rackbar L the rod L, carrying pick L, having pivoted jawor extractor L, to operate substantially as and for the purposes setforth.

In testimony of said invention I have here- I unto set my hand.

HERMANN BARDIIZKY.

Witnesses:

VVILLIAM W. HERTHEL, ANDREW BRANDENBURGER.

